Home / 609,918.60-841,985.10-406,090.20

Finding the Fourth Proportional to 609,918.60, 841,985.10 and 406,090.20

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Solution

The fourth proportional to 609,918.60, 841,985.10 and 406,090.20 is: 560,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,918.60 : 841,985.10 = 406,090.20 : x
  2. Step 2: Convert to fraction form
    609,918.60/841,985.10 = 406,090.20/x
  3. Step 3: Cross multiply
    609,918.60x = 841,985.10 × 406,090.20
  4. Step 4: Simplify right side
    609,918.60x = 341,921,897,656.02
  5. Step 5: Solve for x
    x = 341,921,897,656.02/609,918.60
  6. Step 6: Final answer
    x = 560,602.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.